Round hooded chain saw sharpener



0% 1959' J- P. FAUST, SR

ammo aoonnn 01mm SAW smmsn Filed Aug. 29, 1968 J.P.FAUST, SR.

United States Patent 3,470,772 ROUND HOODED CHAIN SAW SHARPENER JosephP. Faust, Sr., Woodville, Miss. 39669 Continuation-impart of applicationSer. No. 547,070, Apr. 13, 1966. This application Aug. 29, 1968, Ser.No. 767,886

Int. Cl. B2311 63/12, 63/08, 63/00 US. C]. 76-37 6 Claims ABSTRACT OFTHE DISCLOSURE This application is a continuation-in-part of applicationSer. No. 547,070, filed Apr. 13, 1966, now Patent No. 3,426,625.

IDENTIFICATION OF REFERENCE NUMERALS Figure illustrations 1 through4Composed of malleable or low carbon steel.

No. 5-Hollow bushing threaded outside %-11 x long I.S.D. milled fiat twosides one end to inch for wrench application.

No. 6-File and depth gauge channel rack with aligning slots.

No. 7The front jaw movable only as compressed or released.

No. 8Rear tool jaw and chamber assembly rigid.

No. 9-% x 20 threaded hole in carrier rack for maintaining same.

No. 10Left-hand cutter tooth.

-No. 11Right-hand cutter tooth.

No. 12- 75 hole in nose of rear tool jaw and chamber assembly.

No. 13Chuck type lo ck bushing for containing cutter tool.

No. 14Two nuts x 16 x /8 Hex. F. to F. one locks, the other jams.

No. 15%; x A: x /1-20 stripper bolt for supporting carrier rack No. 6.

No. 16Complete handle assembly.

No. 17Cutter tools, reamer, files, or diamond tool, to A inch dia.

No. Iii-Complete round hooded chain for chain saws.

No. 19--Right-hand lock slot in file and gauge rack.

No. 20Left-hand lock slot in file and gauge rack.

No. 212% x A chambers to carry No. 13 chuck type lock bushings part ofNo. 6.

No. 22-Chuck type tap wrench for rotating cutter.

-No. 23Cutter bar groove to guide No. 18 chain.

No. 24Depth gauge channel for left-hand cutter tooth.

No. 25-Depth gauge channel for right-hand cutter tooth.

No. 26Bolts to connect No. 7 and No. 8 units to handles.

No. 27--.072 slot cut in nose of No. 8 to carry floating washer forlock.

No. 28 /s x /2 dial pin to support No. 36, floating washer.

No. 29--Adjustment bolt to control opening of No. 7 movable jaw.

No. 30--C0mpression spring /2 x 1% x 080 gauge.

No. 31--% x 11 thread in rear of No.8 chamber assembly.

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No. 32- /2 inch slot cut 1% inches long to support compression springand No. 7 jaw in chamber No. 8.

No. 33Depth gauge on all chain saw cutter teeth.

No. 34% inch slot cut in lower end No. 7 jaw to straddle chain No. 18.

No. 35Complete cutter bar as used on all chain saws.

No. 36 i x /8 washer inch hole for lock.

FIGURE 1: Being a perspective view of universal tool applied to chain inactive position.

FIGURE 2: The tool is seen from bottom complete, with no chain or cutterbar, less chuck type wrench for rotating cutter tool of FIGURE 1.

FIGURE 3: The top view of file and depth gauge channel rack No. 6,showing slots as referred to in reference No. 19 and No. 20, beingparallel with depth gauge channel on reverse side to accept floatingwasher to lock channel rack in perfect alignment with cutter teeth Nos.10 and 11, while sharpening.

FIGURE 4: A cutout or cross section of bottom view of FIGURE 2, exposingsectional performance, less car- Eer or channel rack and cutter toolassembly of FIG- ABSTRACT AND DRAWING IN DETAIL No. 35 is a portion ofchain saw referred to as cutter bar, containing a groove around rim No.23 to support and maintain chain No. 18 and cutter teeth Nos. 10 and 11,encircling bar in an outward direction from unit.

Illustrated tool, as shown in FIGURE 1, is supported by a pair ofparallel hand tool handles No. 16 by bolts No. 26 attached to short jawand chamber N0. 8 and long jaw No. 7 in active position for sharpeningcutter tooth No. 10; the tool handles No. 1-6, when compressed relievepressure on No. 7 and cutter tool No. 17, thereby releasing right-handcutter tooth No. 10, and the tool can then be removed and pivoted backto opposite angle, then applied to left-hand cutter tooth No. 11, thenreleasing handles enabling compression spring No. 30 to expand and forcefront jaw No. 7 and the cutter assembly back in position on to cuttertooth No. 11, thus rotating chuck type tap wrench No. 22 clockwise untiladjustment bolt No. 29 jams head of chamber No. 32. This prohibits anexcessive amount of steel from being cut from cutter tooth and sharpenstooth as desired. No. 17, the cutter tool, being a round high speedsteel straight fluted reamer, carbon steel, or diamond plated file, 7inch and inch in diameter as shown in FIGURES 1 and 2, supported by abrass chuck type threaded split bushing No. 13 and two nuts, No. 14,supported by chambers -No. 21, being a part of tool rack No. 6. Twonuts, No. 14, are screwed on to bushings No. 13 and jammed to oneanother to fasten reamer or files to develop a mating unit forsharpening cutter teeth. No. 33, the depth gauge, being a part of cuttertooth No. 10, and No. 11, to avoid excessive cut while in motion,inserts in channel No. 24, and No. 25, on tool rack as tool clampscutter teeth for sharpening. The cutter tool assembly, composed of Nos.17, 6, 13, 14 and 22, can be pivoted to approximately thirty-seven andone-half degrees, right or left. No. 36, a floating washer in No. 27slot, supported by No. 28 dial pin, fits in lock slot Nos. 19 and 20,right or left, as a lock; to disengage, lift with pointer finger andpivot tool rack and cutter assembly to opposite parallel slot, thusrelease same to relock. Handles No. 16 are compressed to relax No. 29,to adjust No. 7, to proper size of tooth, and also permit sufficientforward motion of No. 7 to correctly sharpen tooth. The tool and depthgauge channel rack No. 6 is supported at point of No. 8, as shown inFIGURE 4, through No. 12 with stripper or shoulder bolt No. 15 andscrewed into No. 9, being a part of No. 6, thus permitting cutter toolassembly to pivot from right to left 3 cutter teeth. No. 5, a threadedhollow bushing milled flat two sides at end for A inch wrench, forscrewing into No. 8, at No. 31, chamber, and puts tension on compressionspring No. 30 and thus jams No. 7 to the required tension for No. 17cutter to perform properly as rotated in cutter teeth. Adjustment screwNo. 29 is the means of adjusting space between No. 7 and No. 17 toacquire proper clearance for application. No. 29, adjustment screw, goescompletely through Nos. 5, 7 and 30 and jams front of No. 8, chamber,and when turning clockwise opens space between N0. 7 and No. 17, asshown in FIG- URE 4, until suflicient to clamp on cutter teeth andpermit cutter assembly to bear on same; as teeth wear or are reduced bysharpening, adjustment bolt No. 29 is turned counterclockwise to allowcontact on cutter teeth, as illustrated. No. 34, is a quarter inch slotcut in the tip or lower part of jaw No. 7 to drop below chain link levelat rear of cutter teeth to assist in maintaining tooth alignment withdepth gauge channel No. 24 and No. 25.

I claim:

1. A chain saw sharpener comprising a pair of plierstype handles pivotedintermediate their ends; first jaw means pivotally mounted on one ofsaid handles; second jaw means, having a portion adapted to engage aback portion of a cutter tooth of said chain saw, pivotally mounted onthe other of said handles; a chamber assembly attached to said first jawmeans; and a file and depth gauge channel rack pivotally mounted on saidchamber assembly and adapted to receive a cutter tool; said chamberassembly including a bore through which said second jaw means extends,resilient means positioned in said bore and bearing against said secondjaw means to bias said jaws apart and to bias said file and depth gaugechannel rack toward said second jaw means whereby said cutter tooth isresiliently clamped between said second jaw means and said cutter tool,and an adjustment means associated with said chamber assembly forregulating the amount of material removed from said cutter tooth by saidcutter tool.

2. A chain saw sharpener as defined in claim 1 wherein said file anddepth gauge channel rack has a plurality of lock slots therein and saidchamber assembly has mounted thereon a fioating washer locking devicefor engaging said locking slots to position said file and depth gaugechannel rack.

3. A chain saw sharpener as defined in claim 1 wherein said file anddepth gauge channel rack has a plurality of depth gauge channels thereinfor engaging a depth gauge on said chain saw for positioning said cuttertool at a proper angle with respect to said cutter tooth.

4. A chain saw sharpener as defined in claim 1 in which said adjustmentmeans extends through said bore of said chamber assembly, andthreadingly engages a portion of said second jaw means and abuts aportion of said chamber assembly, whereby the distance between saidsecond jaw means and said cutter tool can be regulated.

5. A chain saw sharpener as defined in claim 1 wherein said resilientmeans comprises a compression spring and means to vary the force appliedby said spring.

6. A chain saw sharpener as defined in claim 1 wherein said file anddepth gauge channel rack includes a pair of chuck bushings for retainingsaid cutter tool in said file and depth gauge channel rack during thecutting operation.

References Cited UNITED STATES PATENTS 2,770,985 11/1956 Pearce 76373,005,363 10/1961 Newman 7636 TRAVIS S. MACGHEE, Primary Examiner US.Cl. X.R.

